<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <style>
        :root {
            --primary-color: #2196f3;
            --secondary-color: #666;
            --border-color: #e0e0e0;
            --background-color: #f8f9fa;
            --hover-color: #1976d2;
            --error-color: #f44336;
            --success-color: #4caf50;
        }

        body {
            margin: 0;
            padding: 40px;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            background: #fff;
            color: #333;
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .section {
            margin-bottom: 40px;
            border-radius: 12px;
            background: var(--background-color);
            padding: 24px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        }

        .section-title {
            font-size: 18px;
            font-weight: 600;
            color: #1a1a1a;
            margin-bottom: 20px;
        }

        .promo-area {
            background: #fff;
            border-radius: 8px;
            padding: 20px;
            margin-bottom: 20px;
        }

        .promo-title {
            font-size: 16px;
            color: var(--secondary-color);
            margin-bottom: 12px;
        }

        .promo-content {
            position: relative;
            border: 2px dashed var(--border-color);
            border-radius: 8px;
            overflow: hidden;
        }

        .promo-content.hero {
            width: 1400px;
            height: 560px;
            background: linear-gradient(45deg, var(--primary-color), var(--hover-color));
        }

        .promo-content.small {
            width: 440px;
            height: 280px;
            background: linear-gradient(45deg, var(--primary-color), var(--hover-color));
        }

        .promo-content.screenshot {
            width: 1280px;
            height: 800px;
            background: #fff;
        }

        .promo-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            color: #fff;
            text-align: center;
            padding: 20px;
        }

        .screenshot-content {
            display: flex;
            height: 100%;
        }

        .screenshot-browser {
            flex: 1;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            margin: 10px;
            position: relative;
        }

        .browser-toolbar {
            height: 40px;
            background: var(--background-color);
            border-bottom: 1px solid var(--border-color);
            border-radius: 8px 8px 0 0;
            display: flex;
            align-items: center;
            padding: 0 16px;
            gap: 8px;
        }

        .browser-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--secondary-color);
        }

        .extension-popup {
            position: absolute;
            top: 60px;
            right: 20px;
            width: 380px;
            background: #fff;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            padding: 20px;
        }

        .popup-header {
            display: flex;
            align-items: center;
            margin-bottom: 16px;
        }

        .popup-icon {
            width: 24px;
            height: 24px;
            margin-right: 12px;
            background: var(--primary-color);
            border-radius: 4px;
        }

        .popup-title {
            font-size: 16px;
            font-weight: 600;
        }

        .popup-content {
            background: var(--background-color);
            border-radius: 8px;
            padding: 16px;
        }

        .key {
            display: inline-block;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            padding: 4px 8px;
            font-size: 12px;
            color: var(--secondary-color);
            margin: 0 4px;
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="section">
            <div class="section-title">Chrome Web Store 宣传素材</div>
            
            <div class="promo-area">
                <div class="promo-title">1. 顶部宣传图块 (1400x560)</div>
                <div class="promo-content hero">
                    <div class="promo-overlay">
                        <h1>VideoSnap Pro</h1>
                        <p>轻松捕获精彩视频瞬间</p>
                    </div>
                </div>
            </div>

            <div class="promo-area">
                <div class="promo-title">2. 小型宣传图块 (440x280)</div>
                <div class="promo-content small">
                    <div class="promo-overlay">
                        <h2>VideoSnap Pro</h2>
                        <p>视频帧捕获工具</p>
                    </div>
                </div>
            </div>

            <div class="promo-area">
                <div class="promo-title">3. 截图模板 (1280x800)</div>
                <div class="promo-content screenshot">
                    <div class="screenshot-content">
                        <div class="screenshot-browser">
                            <div class="browser-toolbar">
                                <div class="browser-dot"></div>
                                <div class="browser-dot"></div>
                                <div class="browser-dot"></div>
                            </div>
                            <div class="extension-popup">
                                <div class="popup-header">
                                    <div class="popup-icon"></div>
                                    <div class="popup-title">VideoSnap Pro</div>
                                </div>
                                <div class="popup-content">
                                    <div style="margin-bottom: 12px;">
                                        <span class="key">Option</span>+<span class="key">S</span>
                                        复制到剪贴板
                                    </div>
                                    <div>
                                        <span class="key">Option</span>+<span class="key">Shift</span>+<span class="key">S</span>
                                        保存到文件
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</body>
</html>
